UPDATE Jul 15 2012: I have linked my changes at the bottom of the post so you can either grab the bin or the changed files.
Last year I wrote on how our org used tfs2svn to get us out of some jams when our TFS / SvnBridge / ReviewBoard solution was returning errors (Migrate TFS to SVN). We had been using that solution merrily while TFS 2008 Server was in play. Disaster struck when the infrastructure guys upgraded last week to TFS 2010 taking full advantage of the new TFS 2010 Collections paradigm. What the new Collections does is alter the URL so that part of the path after the domain is the collection and part is the repository path (ex: http://tfsserver:8080/tfs/collection/myProject/trunk where the “http://tfsserver:8080/tfs/collection/” part is the server and collection declaration and the “/myProject/trunk” part is the TFS repository path “$/myProject/trunk”.